Improvement in couplings for chairs



J. PEARD.

. coUPLINGs Fon CHAIRS.

N.177,548l Patented May161,1876.

UNITED STATES ATN'I FCE.

JOIINPEARD, OF BROOKLYN, NEW YORK.

IMPROVEMENT IN COUPLINGS FOR CHAIRS.

Specification forming part of Letters Patent No. 177,548, dated May 16, 1876; application filed February 9, 1876.

To all whom it may concern:

Be it known that I, JOHN PEARD, of Brook- 1yn,in the county of Kings and State of New York, have invented a new and useful 1mprovement in Couplings for Chairs and Seats, which improvement is fully set forth in the following specification, reference being had to the accompanying drawing, in which- Figure 1 represents a longitudinal vertical section. Fig. 2 is an inverted plan. Fig. 3 is a detached section of the springlatch which forms a part of my invention.

Similar letters indicate corresponding parts.

This invent-ion 'relates te an improvement in the couplings for that class ot' chairs or seats which, when coupled together, form a continuous seat, and can be Vgiven readilyl dit'- ferent forms, as may be desired, such as straight, curved, undulatiirg,l or horseshoeshaped, 'without uncoupiing or separating the chairs, as described in the patent of Alfred Taylor, dated January 30, 1872, No. 123,131.

The couplingsheretofore used consisted of an eye plate, which is secured to the under surface ofthe seat of one chair, and a pin-plate secured to the under surface of the seat ofau adjoining chair, so that by causing the pin projecting from the pin-plate to catch in the eye of the eye-plate the chairs were coupled.

This .device is of service for chairs ot' uniform height; but it cannot be used for chairs which ditfer in height as much as half an inch or more, and even it' the diti'erencein the height of adjoining chairs is less than halt' an inich, the parts of the coupling are liable to become broken or detached from,` each other, and ythe object of the coupling isidestircyed. rlhis lisadvantage I have obviatfedl ,by my invention,

which consists in combining with the eyeplate of a coupling for Ichairs a supportingplate 4provided with a boss, which projects from said supportingplate, `rand forms a bean lng for vthe pivot on w'ihich the eye-plate swings, so that when the supporting-plate is attached4 to the under surface of the seat of a chair, the eye-plateis thrown oft' some distance from said under surface ot` the seat, and 1f chairs of different heighty are coupled 'together, said eye'plate is not liable to break off. With the coupling-pin is combined a latch, which can easily be connected to the eye-plate of the coupling, and which prevents the chairs, after the same have been coupled two adjoining chairs, which are secured to` gether by a coupling, B. rIhis coupling consists of an eye-plate, a, and a pin plate, b. With the eye plate a is combined a supporting plate, c, which is provided with a boss, d, projecting from its under surface, and said boss forms the bearing for a pivot, e, on which swings the eye-plate a. When the supporting-plate c is secured to the under surface of theseat ot a chair, A', the eye-plate is thrown off some distance from the seat, as shown in Fig. l.

The pin-plate b is provided with a long pin, f, and it' the pin-plate is secured to the under surface ot' a chair, A, and its pin is made to f catch in the eye of the eye-plate, the two chairs A A are coupled together, and either of the chairs can be raised or lowered a certain distance without disturbing any part of the coupling or without detaching the chairs. It' the chair A', for instance, is somewhat higher than the chair A, and the eye-plate is secured close to the under surface of the seat, the pin-plate b of the chair A will bear upon the eye-plate, and when the chairs are occupied said eye-plate is liable to break olf. It the chairA is the highest ofthe two, and the pin f is too short, the two chairs cannot be coupled.

With the pin j' I have combined a hook or latch, g, with or without a spring, which, when the pin is passed through the eye of the' eye-plate, serves to lock the same and prevent it from gettingdetachedaccidentally.

When the chairs are required to be uucoupled, the latch g is simply pushed inward, so as to permit of sliding the pin fout of the eye ofthe eye-plate, the latch immediately re suming its normal position after the pin has been removed.

I do not claim, broadly, as my invention,

of :tsupporti11g-plate,c7 havingadowrrwardly- In testimony that I elaim the foregoing projecting boss, d, with the eye-plate a, so as have hereunto set my hand this 7th dey of to throw oi' said eye-plate from the lower sur- February, 1876. v

face of the seat, substantially as shown and described. JOHN PEARD.

2. The combination, with the eye-plate a, of

a coupling pin, f, having a latch, g, with or Witnesses:

Without a. spring, substantially as and for the W. HAUFF,

obj ect specified. E. F. KASTENHUBER. 

